Westcott FJ400 Strobe 2-Light Backpack Kit with FJ-X3 M Multi-Brand Wireless TransmitterWestcott FJ400 Strobe 2 Light Backpack Kit with FJ X3 M Multi Brand Wireless Transmitter The Westcott FJ400 2 Light Backpack Kit is a complete portable flash system designed for photographers who need the flexibility and creative control that only a multi light setup can provide. Combining two powerful FJ400 400Ws AC DC strobes with the FJ X3 M Multi Brand Wireless Trigger and essential accessories, this kit delivers professional level lighting